GPS Antenna replacement

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F1RMB
Posts: 2868
Joined: Sat Nov 16, 2019 5:42 am
Location: Grenoble, France

GPS Antenna replacement

Post by F1RMB » Wed Jul 19, 2023 3:55 am

Hi,

Following up this post about GPS performance increasing, I decided to replace my RT-90's GPS antenna, as I found getting a fix with it was quite slow.
I used the same amplified antenna listed in the MD-UV380 thread.
The modification is pretty simple:
  • open the radio, disconnect the flat-flex, unscrew the head,
  • disassemble the head (4 screws),
  • remove the original antenna (there is a small double sided tape patch between the antenna and the backcover),
  • cut the tab because the new antenna is longer than the original one,
  • install the new antenna (reusing the double sided tape), connect the new antenna (uFL/IPEX).
  • reassemble the whole thing.
I now get a fix way faster, with more satellites.
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